diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 608bfb8842..3cd0df695e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2014-07-24  Tom Tromey  <tromey@redhat.com>
+
+	* stack.c (up_silently_base, down_silently_base): Make argument
+	const.
+
 2014-07-24  Tom Tromey  <tromey@redhat.com>
 
 	* solib.c (solib_add): Make "pattern" const.
diff --git a/gdb/stack.c b/gdb/stack.c
index 4db5df5525..3ca4db03ad 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -2306,7 +2306,7 @@ current_frame_command (char *level_exp, int from_tty)
    previously selected frame, and print it briefly.  */
 
 static void
-up_silently_base (char *count_exp)
+up_silently_base (const char *count_exp)
 {
   struct frame_info *frame;
   int count = 1;
@@ -2337,7 +2337,7 @@ up_command (char *count_exp, int from_tty)
    selected frame, and print it briefly.  */
 
 static void
-down_silently_base (char *count_exp)
+down_silently_base (const char *count_exp)
 {
   struct frame_info *frame;
   int count = -1;